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📄 AArch64TargetParser.cpp(8 KB)
📄 ABIBreak.cpp(811 B)
📄 AMDGPUMetadata.cpp(9.37 KB)
📄 APFloat.cpp(155.26 KB)
📄 APInt.cpp(98.08 KB)
📄 APSInt.cpp(1.44 KB)
📄 ARMAttributeParser.cpp(13.94 KB)
📄 ARMBuildAttrs.cpp(3.45 KB)
📄 ARMTargetParser.cpp(18.09 KB)
📄 ARMWinEH.cpp(1.08 KB)
📄 Allocator.cpp(1.35 KB)
📄 Atomic.cpp(1.6 KB)
📄 BinaryStreamError.cpp(1.76 KB)
📄 BinaryStreamReader.cpp(5.24 KB)
📄 BinaryStreamRef.cpp(4.76 KB)
📄 BinaryStreamWriter.cpp(3.36 KB)
📄 BlockFrequency.cpp(2.12 KB)
📄 BranchProbability.cpp(3.44 KB)
📄 BuryPointer.cpp(1.11 KB)
📄 COM.cpp(737 B)
📄 COPYRIGHT.regex(2.65 KB)
📄 CRC.cpp(5.23 KB)
📄 CachePruning.cpp(10.33 KB)
📄 Chrono.cpp(3.17 KB)
📄 CodeGenCoverage.cpp(3.61 KB)
📄 CommandLine.cpp(89.06 KB)
📄 Compression.cpp(3.84 KB)
📄 ConvertUTF.cpp(27.27 KB)
📄 ConvertUTFWrapper.cpp(8.66 KB)
📄 CrashRecoveryContext.cpp(15.45 KB)
📄 DAGDeltaAlgorithm.cpp(12.47 KB)
📄 DJB.cpp(2.71 KB)
📄 DataExtractor.cpp(7.25 KB)
📄 Debug.cpp(5.64 KB)
📄 DebugCounter.cpp(4.95 KB)
📄 DeltaAlgorithm.cpp(3.41 KB)
📄 DynamicLibrary.cpp(6.25 KB)
📄 ELFAttributeParser.cpp(7.27 KB)
📄 ELFAttributes.cpp(1.27 KB)
📄 Errno.cpp(2.18 KB)
📄 Error.cpp(4.72 KB)
📄 ErrorHandling.cpp(11.08 KB)
📄 ExtensibleRTTI.cpp(446 B)
📄 FileCheck.cpp(95.77 KB)
📄 FileCheckImpl.h(34.14 KB)
📄 FileCollector.cpp(9.01 KB)
📄 FileOutputBuffer.cpp(6.62 KB)
📄 FileUtilities.cpp(10.81 KB)
📄 FoldingSet.cpp(15.89 KB)
📄 FormatVariadic.cpp(5.17 KB)
📄 FormattedStream.cpp(5.29 KB)
📄 GlobPattern.cpp(5 KB)
📄 GraphWriter.cpp(9.21 KB)
📄 Hashing.cpp(1.16 KB)
📄 Host.cpp(51.63 KB)
📄 InitLLVM.cpp(1.92 KB)
📄 IntEqClasses.cpp(2.18 KB)
📄 IntervalMap.cpp(4.4 KB)
📄 ItaniumManglingCanonicalizer.cpp(10.77 KB)
📄 JSON.cpp(19.1 KB)
📄 KnownBits.cpp(3.78 KB)
📄 LEB128.cpp(1.19 KB)
📄 LineIterator.cpp(2.61 KB)
📄 Locale.cpp(377 B)
📄 LockFileManager.cpp(10.64 KB)
📄 LowLevelType.cpp(2.09 KB)
📄 MD5.cpp(8.99 KB)
📄 ManagedStatic.cpp(2.37 KB)
📄 MathExtras.cpp(913 B)
📄 MemAlloc.cpp(1.01 KB)
📄 Memory.cpp(1.57 KB)
📄 MemoryBuffer.cpp(18.99 KB)
📄 NativeFormatting.cpp(7.54 KB)
📄 OptimizedStructLayout.cpp(16.7 KB)
📄 Optional.cpp(530 B)
📄 Parallel.cpp(5.08 KB)
📄 Path.cpp(36.52 KB)
📄 PluginLoader.cpp(1.63 KB)
📄 PrettyStackTrace.cpp(10.33 KB)
📄 Process.cpp(3.27 KB)
📄 Program.cpp(3.54 KB)
📄 RISCVAttributeParser.cpp(2.06 KB)
📄 RISCVAttributes.cpp(970 B)
📄 RWMutex.cpp(3.23 KB)
📄 RandomNumberGenerator.cpp(2.86 KB)
📄 Regex.cpp(6.38 KB)
📄 SHA1.cpp(10.43 KB)
📄 ScaledNumber.cpp(9.09 KB)
📄 ScopedPrinter.cpp(1.19 KB)
📄 Signals.cpp(8.35 KB)
📄 Signposts.cpp(3.24 KB)
📄 SmallPtrSet.cpp(9.21 KB)
📄 SmallVector.cpp(3.99 KB)
📄 SourceMgr.cpp(20.08 KB)
📄 SpecialCaseList.cpp(7.48 KB)
📄 Statistic.cpp(8.85 KB)
📄 StringExtras.cpp(4.34 KB)
📄 StringMap.cpp(9.31 KB)
📄 StringRef.cpp(17.41 KB)
📄 StringSaver.cpp(882 B)
📄 SuffixTree.cpp(7.23 KB)
📄 SymbolRemappingReader.cpp(2.94 KB)
📄 SystemUtils.cpp(1.06 KB)
📄 TarWriter.cpp(7.23 KB)
📄 TargetParser.cpp(9.86 KB)
📄 TargetRegistry.cpp(4.6 KB)
📄 ThreadLocal.cpp(1.68 KB)
📄 ThreadPool.cpp(4.4 KB)
📄 Threading.cpp(4.55 KB)
📄 TimeProfiler.cpp(11.63 KB)
📄 Timer.cpp(14.14 KB)
📄 ToolOutputFile.cpp(1.83 KB)
📄 TrigramIndex.cpp(3.24 KB)
📄 Triple.cpp(53.17 KB)
📄 Twine.cpp(4.6 KB)
📄 Unicode.cpp(20.14 KB)
📄 UnicodeCaseFold.cpp(15.32 KB)
📁 Unix
📄 Valgrind.cpp(1.6 KB)
📄 VersionTuple.cpp(2.74 KB)
📄 VirtualFileSystem.cpp(74.17 KB)
📄 Watchdog.cpp(738 B)
📁 Windows
📄 WithColor.cpp(4.35 KB)
📄 X86TargetParser.cpp(27.21 KB)
📄 YAMLParser.cpp(68.53 KB)
📄 YAMLTraits.cpp(28.37 KB)
📄 Z3Solver.cpp(31.44 KB)
📄 circular_raw_ostream.cpp(1.3 KB)
📄 raw_os_ostream.cpp(995 B)
📄 raw_ostream.cpp(28.97 KB)
📄 regcomp.c(39.42 KB)
📄 regengine.inc(26.49 KB)
📄 regerror.c(4.42 KB)
📄 regex2.h(6.82 KB)
📄 regex_impl.h(3.63 KB)
📄 regexec.c(5.71 KB)
📄 regfree.c(2.49 KB)
📄 regstrlcpy.c(1.56 KB)
📄 regutils.h(2.25 KB)
📄 xxhash.cpp(4.07 KB)

Editing: BinaryStreamReader.cpp

//===- BinaryStreamReader.cpp - Reads objects from a binary stream --------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//

#include "llvm/Support/BinaryStreamReader.h"

#include "llvm/Support/BinaryStreamError.h"
#include "llvm/Support/BinaryStreamRef.h"
#include "llvm/Support/LEB128.h"

using namespace llvm;
using endianness = llvm::support::endianness;

BinaryStreamReader::BinaryStreamReader(BinaryStreamRef Ref) : Stream(Ref) {}

BinaryStreamReader::BinaryStreamReader(BinaryStream &Stream) : Stream(Stream) {}

BinaryStreamReader::BinaryStreamReader(ArrayRef<uint8_t> Data,
                                       endianness Endian)
    : Stream(Data, Endian) {}

BinaryStreamReader::BinaryStreamReader(StringRef Data, endianness Endian)
    : Stream(Data, Endian) {}

Error BinaryStreamReader::readLongestContiguousChunk(
    ArrayRef<uint8_t> &Buffer) {
  if (auto EC = Stream.readLongestContiguousChunk(Offset, Buffer))
    return EC;
  Offset += Buffer.size();
  return Error::success();
}

Error BinaryStreamReader::readBytes(ArrayRef<uint8_t> &Buffer, uint32_t Size) {
  if (auto EC = Stream.readBytes(Offset, Size, Buffer))
    return EC;
  Offset += Size;
  return Error::success();
}

Error BinaryStreamReader::readULEB128(uint64_t &Dest) {
  SmallVector<uint8_t, 10> EncodedBytes;
  ArrayRef<uint8_t> NextByte;

// Copy the encoded ULEB into the buffer.
  do {
    if (auto Err = readBytes(NextByte, 1))
      return Err;
    EncodedBytes.push_back(NextByte[0]);
  } while (NextByte[0] & 0x80);

Dest = decodeULEB128(EncodedBytes.begin(), nullptr, EncodedBytes.end());
  return Error::success();
}

Error BinaryStreamReader::readSLEB128(int64_t &Dest) {
  SmallVector<uint8_t, 10> EncodedBytes;
  ArrayRef<uint8_t> NextByte;

// Copy the encoded ULEB into the buffer.
  do {
    if (auto Err = readBytes(NextByte, 1))
      return Err;
    EncodedBytes.push_back(NextByte[0]);
  } while (NextByte[0] & 0x80);

Dest = decodeSLEB128(EncodedBytes.begin(), nullptr, EncodedBytes.end());
  return Error::success();
}

Error BinaryStreamReader::readCString(StringRef &Dest) {
  uint32_t OriginalOffset = getOffset();
  uint32_t FoundOffset = 0;
  while (true) {
    uint32_t ThisOffset = getOffset();
    ArrayRef<uint8_t> Buffer;
    if (auto EC = readLongestContiguousChunk(Buffer))
      return EC;
    StringRef S(reinterpret_cast<const char *>(Buffer.begin()), Buffer.size());
    size_t Pos = S.find_first_of('\0');
    if (LLVM_LIKELY(Pos != StringRef::npos)) {
      FoundOffset = Pos + ThisOffset;
      break;
    }
  }
  assert(FoundOffset >= OriginalOffset);

setOffset(OriginalOffset);
  size_t Length = FoundOffset - OriginalOffset;

if (auto EC = readFixedString(Dest, Length))
    return EC;

// Now set the offset back to after the null terminator.
  setOffset(FoundOffset + 1);
  return Error::success();
}

Error BinaryStreamReader::readWideString(ArrayRef<UTF16> &Dest) {
  uint32_t Length = 0;
  uint32_t OriginalOffset = getOffset();
  const UTF16 *C;
  while (true) {
    if (auto EC = readObject(C))
      return EC;
    if (*C == 0x0000)
      break;
    ++Length;
  }
  uint32_t NewOffset = getOffset();
  setOffset(OriginalOffset);

if (auto EC = readArray(Dest, Length))
    return EC;
  setOffset(NewOffset);
  return Error::success();
}

Error BinaryStreamReader::readFixedString(StringRef &Dest, uint32_t Length) {
  ArrayRef<uint8_t> Bytes;
  if (auto EC = readBytes(Bytes, Length))
    return EC;
  Dest = StringRef(reinterpret_cast<const char *>(Bytes.begin()), Bytes.size());
  return Error::success();
}

Error BinaryStreamReader::readStreamRef(BinaryStreamRef &Ref) {
  return readStreamRef(Ref, bytesRemaining());
}

Error BinaryStreamReader::readStreamRef(BinaryStreamRef &Ref, uint32_t Length) {
  if (bytesRemaining() < Length)
    return make_error<BinaryStreamError>(stream_error_code::stream_too_short);
  Ref = Stream.slice(Offset, Length);
  Offset += Length;
  return Error::success();
}

Error BinaryStreamReader::readSubstream(BinarySubstreamRef &Ref,
                                        uint32_t Length) {
  Ref.Offset = getOffset();
  return readStreamRef(Ref.StreamData, Length);
}

Error BinaryStreamReader::skip(uint32_t Amount) {
  if (Amount > bytesRemaining())
    return make_error<BinaryStreamError>(stream_error_code::stream_too_short);
  Offset += Amount;
  return Error::success();
}

Error BinaryStreamReader::padToAlignment(uint32_t Align) {
  uint32_t NewOffset = alignTo(Offset, Align);
  return skip(NewOffset - Offset);
}

uint8_t BinaryStreamReader::peek() const {
  ArrayRef<uint8_t> Buffer;
  auto EC = Stream.readBytes(Offset, 1, Buffer);
  assert(!EC && "Cannot peek an empty buffer!");
  llvm::consumeError(std::move(EC));
  return Buffer[0];
}

std::pair<BinaryStreamReader, BinaryStreamReader>
BinaryStreamReader::split(uint32_t Off) const {
  assert(getLength() >= Off);

BinaryStreamRef First = Stream.drop_front(Offset);

BinaryStreamRef Second = First.drop_front(Off);
  First = First.keep_front(Off);
  BinaryStreamReader W1{First};
  BinaryStreamReader W2{Second};
  return std::make_pair(W1, W2);
}

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Editing: BinaryStreamReader.cpp

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